.NET Developer
Join our mission towards a safe digital future
Do you want to be at the forefront of protecting our society against cyber threats? We are looking for a .NET Developer to team up with the most dedicated team of cyber specialists in our Secure Development domain.
About Truesec – A Leading Cybersecurity Company
Since 2005, Truesec has been a native cybersecurity company, driven by one single purpose: Creating safety and sustainability in a digital world by preventing cyber breach and minimizing impact.
Over the years, we’ve earned the trust of organizations worldwide and gained a strong reputation internationally. Our team consists of dedicated specialists covering the entire spectrum of cybersecurity – with capabilities in Predict, Prevent, Protect, Respond, and Recover.
Today, we employ around 300 employees – and as cybercrime grows, we need to grow. To support that goal, we are now looking for a .Net Developer who wants to create advanced security solutions in our Secure Development domain.
Secure Development
Applications and custom solutions are currently popular targets for threat actors. In
modern application development, security must be present throughout all aspects of the development process. Our engagements span from AppSec-related security
workshops, educating organizations in secure coding and DevSecOps, to longer
assignments where we write code responsibly as integrated team members. We are a cyber tech company with our own custom software and services that we leverage both during assignments and with our clients.
The Role
As a .NET Developer at Truesec, you will be part of a unique group of developers.
There’s opportunity to both develop custom software and services within the Truesec domain, as well as engaging with clients in AppSec-related activities. The internal solutions we develop consist of green field projects, tools for increased efficiency, integrations and visualizing the threat landscape, and overall security posture. For example, this could be a cloud- and container-hosted app built with .NET and C# as backend technologies, and React and Typescript in the frontend.
We want to help even more clients and create a safe and secure digital future. Software helps us scale and increase our reach.
Your Potential Background
We expect you to be able to work well individually and also as part of the team, always striving for excellence and continuous growth, while building secure and performant solutions. You’ll never have to feel alone – instead, learn from your peers, become a valued contributor, and share your own thoughts and experiences.
Due to the sensitivity in our assignments, Swedish citizenship, citizenship in an EU country, or a Swedish work permit is a requirement for this position.
In short, we believe your previous experience could include:
• Experience as a developer with .NET Core/C#.
• High interest in IT security (and want to learn even more).
• Interest in quality, performance, and availability requirements.
If you have experience in any of the following, we will consider it a bonus:
• Microsoft Azure.
• Crypto/security technologies and practices.
• ASP.NET MVC/Minimal API.
• TypeScript/JavaScript/React.
• Container technologies and microservices architecture.
• UX/UI principles.
Join Our Mission Toward a Safe Digital Future
If you truly want to make a difference and make our world a little bit safer, this is the place for you. At Truesec, you'll get to be at the forefront of fighting cybercrime instead of reading about it in the news. This is your chance to be part of an exciting journey in a leading cybersecurity company - and learn from some of the best in their field.
So, are you ready to team up with the most dedicated team of experts and be part of a meaningful mission? Then we are excited to get to know you!
- Department
- Secure Development
- Role
- Developer
- Locations
- Stockholm, Malmö
- Remote status
- Hybrid Remote
- Employment type
- Full-time

Why Truesec?
-
Grow Your Career and Passion
All our employees play an essential part in our mission towards a safe digital future. As your employer, we want to make the most out of your talents. It doesn't matter where you start with us, there are many ways to develop your career. With the right drive and passion, you'll find endless possibilities and get to learn from some of the best in their field. -
Technically Independent
We stay true to our core by being technically independent. We only recommend our conclusion of the best possible solution – nothing more, nothing less. -
Great Perks
At Truesec, you’ll enjoy substantial benefits in combination with the spirit of a scale-up. In addition, you’ll have unlimited opportunities to excel professionally and have some great perks while doing the things you love. -
Be Part of a Great Journey
Besides preventing cyber attacks and building your career, you will be part of a unique journey and make the world a little bit better and safer each day. You'll be at the frontline fighting cybercrime, instead of reading about them in the news.
Our Truesec Culture
For us, it’s not just a job; it’s so much more. Truesec is where tech and purpose align, and we work tirelessly every day to help our customers defend their most valuable data assets. We support, challenge, and help each other, and you’ll get to learn from some of the best in their field.
At Truesec, you'll have opportunities to excel professionally in a welcoming culture based on trust, expertise, collaboration, and sharing knowledge. If you truly want to make a difference while doing the things you love, this is the place for you.
About Truesec
As a global cybersecurity company, we’re proud to be at the forefront of protecting organizations and our society against cyber threats. Our purpose has been clear since day one: Creating safety and sustainability in a digital world by preventing cyber breach and minimizing impact.
We never cease to challenge and reinvent ourselves to stay ahead of cybercriminals and find the best solution for our customers. Over the years, we’ve earned the trust of organizations worldwide and gained the reputation of a reliable partner. Today, we welcome any collaboration that supports our vision towards a safe digital future.
.NET Developer
Join our mission towards a safe digital future
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